• A transposition table is a cache of previously seen positions, and associated evaluations, in a game tree generated by a computer game playing program...
    8 KB (1,272 words) - 20:14, 29 November 2024
  • Thumbnail for Hash table
    in the collection, rather than element retrieval. A transposition table to a complex Hash Table which stores information about each section that has...
    54 KB (6,078 words) - 10:02, 16 June 2025
  • color) is alphaOrig := α (* Transposition Table Lookup; node is the lookup key for ttEntry *) ttEntry := transpositionTableLookup(node) if ttEntry.is_valid...
    13 KB (1,776 words) - 15:23, 25 May 2025
  • Look up transposition in Wiktionary, the free dictionary. Transposition may refer to: Transposition (mathematics), a permutation which exchanges two elements...
    2 KB (319 words) - 09:15, 12 May 2022
  • Thumbnail for Board representation (computer chess)
    minimize the potential size of the table that must be stored in memory, is called "magic bitboards". A transposition table is a cache of previously seen positions...
    12 KB (1,734 words) - 11:56, 11 March 2024
  • Thumbnail for Computer chess
    will vary with processor speed, and memory, needed to hold large transposition tables. Most modern chess engines, such as Stockfish, rely on efficiently...
    117 KB (14,394 words) - 02:30, 14 June 2025
  • transpose is to play a move that results in a transposition. Transposition tables are an essential part of a computer chess program. Transpositions exist...
    11 KB (429 words) - 16:55, 4 May 2025
  • abstract board games, such as chess and Go, to implement transposition tables, a special kind of hash table that is indexed by a board position and used to avoid...
    6 KB (855 words) - 02:31, 2 January 2025
  • used for a Control table or State-transition table in the field of Business process modeling; they are usually formatted as the transpose of the way they...
    13 KB (1,169 words) - 03:59, 6 June 2025
  • Thumbnail for Hash function
    functions Nearest neighbor search Distributed hash table Identicon Low-discrepancy sequence Transposition table This is useful in cases where keys are devised...
    50 KB (7,455 words) - 21:00, 27 May 2025
  • to use ‘zero-window’ initial search bounds, and memory (usually a transposition table) to reuse intermediate search results. MTD(f) is a shortened form...
    6 KB (812 words) - 23:43, 14 July 2024
  • Thumbnail for ChessV
    Piece-square tables, Pawn structure evaluation, Mobility evaluation, King safety, King tropism, Lazy evaluation. Hash Tables: Transposition table, Pawn structure...
    7 KB (705 words) - 19:15, 15 April 2025
  • cipher was a fractionating transposition cipher which combined a modified Polybius square with a single columnar transposition. The cipher is named after...
    13 KB (1,696 words) - 18:23, 13 February 2025
  • tree search Negamax Negascout Sion's minimax theorem Tit for Tat Transposition table Wald's maximin model Gamma-minimax inference Reversi Champion Bacchus...
    27 KB (3,815 words) - 06:36, 2 June 2025
  • use a form of NegaScout in their search. Most chess engines use a transposition table in which the relevant part of the search tree is stored. This part...
    7 KB (1,046 words) - 15:23, 25 May 2025
  • Thumbnail for Belle (chess machine)
    pruning. The computer also had one megabyte of memory for storing transposition tables. At the end of its career, Belle was donated to the Smithsonian Institution...
    11 KB (1,284 words) - 14:10, 24 May 2025
  • Thumbnail for Stockfish (chess)
    number of CPU threads in multiprocessor systems, with a maximum transposition table size of 32 TB. Stockfish has been a very popular engine on various...
    98 KB (6,240 words) - 09:33, 13 June 2025
  • the same nodes in the same order) when alpha–beta is used with a transposition table, as is the case in all game-playing programs for chess, checkers...
    5 KB (749 words) - 23:12, 14 August 2023
  • Thumbnail for Crafty
    exchange evaluation, quiescence search, alpha-beta pruning, a transposition table, a refutation table, an evaluation cache, selective extensions, recursive null-move...
    5 KB (432 words) - 10:59, 4 August 2024
  • Thumbnail for Richard Greenblatt (programmer)
    Institute of Technology (MIT) Known for Mac Hack chess computer Maclisp Transposition table Incompatible Timesharing System Relatives Aliza Greenblatt (paternal...
    8 KB (661 words) - 14:38, 9 June 2025
  • In logic and mathematics, contraposition, or transposition, refers to the inference of going from a conditional statement into its logically equivalent...
    41 KB (6,175 words) - 22:54, 31 May 2025
  • and bound Combinatorial optimization Principal variation search Transposition table Late move reductions Russell & Norvig 2021, p. 152-161. McCarthy...
    19 KB (2,408 words) - 00:21, 17 June 2025
  • import string def affine(a: int, b: int, s: str) -> str: """Prints a transposition table for an affine cipher.""" D = dict(enumerate(string.ascii_lowercase...
    10 KB (1,141 words) - 02:53, 12 February 2025
  • Thumbnail for Computer Go
    deepening approach. In order to quickly store a full-sized Go board in a transposition table, a hashing technique for mathematically summarizing is generally...
    52 KB (6,501 words) - 03:38, 5 May 2025
  • cycles), programs written to solve these kinds of puzzles use transposition tables. A transposition is a puzzle state that can be reached by different paths...
    6 KB (939 words) - 03:18, 26 October 2022
  • 16 MHz or 32 MHz, and 128 KB, 512 KB, or 1 MB of onboard memory for transposition tables. This made economic sense at the time of introduction because mainstream...
    2 KB (338 words) - 19:40, 19 November 2024
  • Thumbnail for Glossary of computer chess terms
    that branch. transposition table A record of positions and their evaluations as found in an earlier part of the search. A transposition table saves computation...
    10 KB (1,440 words) - 08:44, 19 January 2025
  • widely distributed. Mac Hack was the first chess computer to use a transposition table, which is a vital optimization in game tree search. Greenblatt and...
    7 KB (718 words) - 11:07, 27 May 2025
  • Thumbnail for Chess engine
    (speculative analysis while the opponent is thinking) aka Permanent Brain. Transposition table sizes. GUI settings. Opening book settings. These differences affect...
    36 KB (3,973 words) - 21:41, 28 May 2025
  • Thumbnail for Computer Othello
    used to reduce the size of the searched tree: good move ordering, transposition table and selective Search. To speed up the search on machines with multiple...
    20 KB (2,166 words) - 14:25, 6 October 2024